George draper



@eine tetra Istrat @fitta GEORGE DRAPER, OF MILFORD, MASSACHUSETTS.

Letters ,Patent No. 60,704, dated January 1, 1867.

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TO ALL PERSONS TO WEOM THESE PRESENTS SHALL COME:

Be it known that I, GEORGE DRAPER, of Milford, in the county of Worcester, and State of Massachusetts, have made a new and nsefulinvention, having reference to the Spindles and the Bolsters thereof of Spinning Machines; and I do hereby declare the same to be fully described in thefollowing specification, and represented in the accompanying drawings, of which- Figure '1 is a vertical section of a spindle and bolster provided with my improvement.

Figure 2 is a side view of that part of the spindle which runs within the bolster.

In order to prevent waste of oil from the bolster of a spindle, it has been customary to combine with the bolster, or apply to it, a cup to receive and hold the oil, `such being as representedand described in the United States Patent No. 20,920, granted July 13th, A.- D. 1858, to Amasa Houghton. Ithas also been customary to make, in the inner surface of the bolster, a spiral or helical groove, to extend upward from the said cup, and to encompass the part of the spindle which runs in the bolster, 'the object of such groove being to eifectthe elevation of the oil on the surfaces to be lubricated. In carrying out my invention or improvement, I form the spiral or helical groove in the journal of the spindle, orthat part of the spindle which is within the bolster, the groove being extended upward from the bottom of the cup; and such groove, at its top, may enter an annular groove made in and'around the spindle. Such annular groove may be encompassed by another such groove, made in the inner surface of the bolster. With my improvement, the oil is-certain to be. elevated in the bolster and from the cup, so as to keep the bearing surfaces of the spindle and bolster well lubricated. This will be seen from 'the fact that, when the helical groove is in the spindle, such groove will be revolved therewith, and must operate like an Archimidean screw, to move the lui'd, but `when the helical screw is in the bolster, it remains stationary all the time, and can act with little or no effect in elevating the oil. The annular channel in the spindle will operate as a receiver ofthe oilelevated, and as a regulator of its upward ilowage. It also prevents the oil from being forced upward out of the top of the bolster. In the drawlngs, A denotes thespindlo7 B the bolster, and C the whirl of the spindle. The oil cup of the bolster is exhibited at a, as formed in a sleeve, I), fitted to the spindle, and extending up from the whirl. A part, b, of the bolster extends down within the oil cup a.' The helical groove formed in the spindle, and extending up from the cup, is shown at c, the annular-groove in which the i helical groove c terminates at top being represented at d. The auxiliary or concentric annular groove in the bolster is denoted at e. -The bobbin rest is shown atf, as'screwed upon rthe spindle.

I do not claim as my invention a spindle bolster constructed with a helical groove, for aiding in lubricating the bearing surfacesof the spindle and bolster; nor do I claim the application of an oil reservoir or cup to the upright spindle and bolster, in manner and so as t'o operate as represented in the United States Patent hereinbefore mentioned. Nor do I'claim the application of an oil reservoir or cup to the spindle and bolster; nor thel application of an oil chamber in the upper part of the bolster, in connection with n. spiral or helical groove arranged inthe bolster, the same being as exhibited in the United States Patent NQ. 47,278, granted to George W. Briggs, April 18th, 1865, my invention being an improvement with reference to such, for by arranging the helical groove in the spindle instead of in the bolster, better results follow, and there is no danger of the groove becoming clogged. When in the bolster it is liable to become clogged by reason of the action of the centrifugal force generated in the oil by the spindle, the oil or grease being forced and packed into the groove, whereas with my improvement the tendency of theoentrifugal force is to throw the oil out of the groove, and insure its ascent. Nor do I claim the arrangement of a helical or spiral groove in the spindle to operate with a cup surrounding the bolster, and being uncovered and connected with the groove of the. spindle by a hole made through the bolster, the same being as represented in yMason and Collinss British Patent, No. 14,140, for theyear 1852. In. my invention'the oil chamber is formed in a sleeve, D, and so as to encompass the spindle which, when in place, aids in the formation of such chamber, and the chamber is closed by the bolster, which extends into the cup.y Were it not for thisthe oil would be liable to be thrown out of the cup by the pressure of the column of oil in the groove at the time of .a stoppage of the spindle. Furthermore, the cup, when uncovered, is hable to collect dirt and laments of the fibrous material spun, all of which is avoided by my improvement. f

. I claim as my improvement, the arrangement of the helical groove in the upright spindle, when the groove is used in combination with the covered cup or closed oil chamber, applied to the-'spindle and bolster, and formed in the sleeve D, as set forth. I

I also claim the oombination as well as the arrangement of both of the annular grooves d e with the helical groove c, formed in the spindle, and to operate in the bolster, and extend up from the oil cup a thereof, sub, stantially as and for the purpose specified.

I also claim the arrangement of both the grooves c and d in the spindle, when they are used in connection with an 'oil cup applied to the spindle or arranged in the bolster,- as specified.4

GEORGE DRAPER.4

Witnesses:

R. H. EDDY, F. P. HALE, Jr, 

